In a room of random stranger, where 5 of the 10 were sex workers, including porn actors, a paid escort and a webcam host, could you spot the sex workers? Video production company Cut asked four people to interview 10 strangers and do just that. So from the start, everyone had a 50-50 shot of guessing correctly. But still they’d didn’t really do better than 50-50. Think you can do better?